My fog lights aren't working. Checked the relay and the power coming in, all is good but it's not getting power to the relay, so it's coming back somewhere between the switch and the input at the light. First thought is fuse but can't figure out which one goes to it. The stupid cover doesn't say squat about lights. The manual has no layout. Anyone know?

 

I blew a fuse on the fog lights on my FX, so I hope this helps, or gives you another idea where to look. Besides the fuse box by the battery and in the driver side, I had 3 hidden fuze boxes:

They were BEHIND the battery (between the battery and firewall basically, which is directly under the windshield) under the black shrowd that surrounds the battery and windshield wipers. So i took off the battery cover and all that black molding, and there were the 3 boxes, with one fuse specicially labeled "FOG LIGHTS". Real easy to remove. They were just those pop screws you pry up with a screw driver and push back in.

Hope this helps...

 

and if it did blow (don't know yet) then I have to figure out why the damned thing blew.

i'll check that out, thanks man.

 

I suspect you did. I've blown my fuse a few times buy turning them on with the car off (big power difference between stock halogen and HID fogs). Also, I'd try a bigger fuse. 15 or 20A if you have it. Save yourself from future blow outs.

 

I know HID's don't 'use' much but pull quite a bit on startup. It's always somethin, you know!

EDIT: Found the fuse panel by the battery but says nothing about Fog lights or Headlights. Didn't find a 'third' panel anywhere and after talking to Grubbs, they said the G only has 2 panels and the fogs are on the same circuit as the parking lamps, so now I'm off to look for a "Park Lamp" fuse.

 

Here's the covers for those who want to look... Tell me where you see any friggin fog light or parking light or any crap like that...

 

just found this while searching, from back in May:

Can anyone back this up, a fuse panel under the battery? There's one next to the battery but under or behind?

 

If you've installed aftermarket bulbs that pull more current then the OEM bulbs you should run bigger wire and use a bigger fuse. The stock fuses are selected based off of wire size - using a bigger fuse could lead to the car catching on fire.

To get to the fuse box behind the battery it helps to take the battery out. You could possibly do it without taking the battery out, but it only takes 5 minutes to pull the battery out and it makes it much easier to access it and work in there.

 

ok, thanks. yea, the bulbs installed are HID and have a larger, upgraded harness with them, but still pulling on stock fuse.

so, there is another fuse location behind the battery in addition to the plastic one right out front? it's too cold to do much with it today. I was hoping I could just swap a fuse and go but lacking a heated shop, I'm not pulling anything. I'd like to pull the airboxes as well and go back over all the wiring to ensure nothing's rubbing but I'll save it for a warmer day.

 

You should have connected them directly to the battery and used a relay off of the OEM signal to turn the relay on/off. That would eliminate extra current on the OEM fuse.

The entire IPDM is mounted behind the battery on the firewall. If you remove all the plastic trim pieces around the battery you will see it. You have to pull the cover off.

 

Yea, it has a relay that's triggered off the OEM signal and pulls current from the battery. I'm not so sure it's the fuse but I wanted to check. That's also why I need to get in there, to check the wiring.... there's something going on and I have a feeling there's a worn wire somewhere.

BTW, you don't have a box that allows the fogs to be in seperate from the headlights, do you? I think I've asked you before but forgot.

 

Sredish! Read mine Thread about the fuse box locate on the passenger side next to the battery. 15A fuse FR Fog Lamp (3rd from below right).

https://g35driver.com/forums/g35-cou...ml#post3660021